First of all, read my post first- I said both 5D (FF) and 50D (APS-C) that I have used appeared less noisy than my 7D. So it has nothing to do with confirmation bias.
First of all, read my post first - I did not say your opinion was from confirmation bias. My suggested theory is that you don't know how to size/compare properly. (And having three cameras in the mix would not preclude confirmation bias.)
Was my 7D out of spec? I think not- I have heard of similar noise issues from many people.
Noise issues which don't show up in scientific tests? I guess Canon sent the special noise free 7D's to the reviewers.
Secondly, your first guess is wrong- I don't pixel peep when looking for noise. When I say, ISO xxx was unacceptable it means I looked at it full screen on my 24" monitor and it looked bad. That's a pretty low bar, wouldn't you say?
As a testing methodology yes, that is very low bar. Your software, scaling algorithm, monitor, monitor settings, all affect the final result. For example: at the right scaling in Apple Preview on a MacBook (non-Retina) you can make a FF 5D3 or D600 look noisy at base ISO because the scaling mechanism screws up.
Finally, please don't go mentioning "scientifically reproducible tests" without citing them.
Pretty much every review on Earth noted that the 7D was cleaner then the 50D, and at 3200 the 5D has visibly more chroma noise (though I think it's visibly even and tests a bit better on luminance). Go review the Dave Box tests at Imaging Resource.
You mentioned that I shall attribute the noisier image to 7D. How does that relate to my inability to size images? Of course, it will be affected by my alleged inability to compare images, but then that is just your guess, isn't it? Do note that the 50D was mentioned anecdotally, I did say that I have NOT done ANY comparisons. So yes, there could be bias, and my statement implicitly expressed that possibility. Although it is cognitive bias, not confirmation bias.
A low bar for performance is not the same as low bar for technique.
I am not a professional pixel-peeper or someone with lots of free time in hand. I don't objectively test cameras or formats so all the parameters you mentioned are moot. My finding was, at the same monitor settings and when displayed full screen, the 7D images looked noisy. Yes, I know it isn't the same ratio of enlargement. Who cares? All that matters to me is whether or not an image looks good at the size I will use it. If the one from 5Dc looks better, I will keep that camera. And I did.
So what are you trying to prove through your offensive statements, unsupported information and uneducated "guesses"? If I read some 10 reviews saying 7D is supposed to be better, the images that looked noisy before will now appear clean?
Put less stock in theories and calculations, and rely on your eyes. If you feel 7D is better, good for you. Don't come trying to tell me what I should feel.